<template>
  <div class="login_container">
    <div class="login-box">
      <!-- 头像区域 -->
      <div class="avatar-box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区域 -->
      <el-form
        label-width="0"
        class="login-form"
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginFormRef"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            prefix-icon="iconfont icon-user"
            v-model="loginForm.username"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-3702mima"
            v-model="loginForm.password"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      // 登录表单数据绑定对象
      loginForm: {
        username: '',
        password: ''
      },
      // 表单验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm() {
      // console.log(this);
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) {
          return
        } else {
          const { data: res } = await this.$http.post('login', this.loginForm)
          if (res.meta.status !== 200) {
            return this.$message.error('登录失败！')
          } else {
            // console.log(res);
            window.sessionStorage.setItem('token', res.data.token)
            this.$router.push('/home')
            return this.$message.success('登录成功！')
          }
        }
      })
    }
  }
}
</script>
<style lang="less" scoped>
.login_container {
  height: 100%;
  background-color: #2b6b4b;
}
.login-box {
  width: 450px;
  height: 300px;
  background-color: #ffff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar-box {
  height: 130px;
  width: 130px;
  border: 1px solid #eeee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #ffff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eeee;
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login-form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>
